Post by
Calvin »
https://forums.nicoclub.com/calvin-u5675.html
Thu Mar 06, 2003 6:36 pm
The 300z filter usually is priced lower, but it is larger and therefore doesn't fit as well into the smaller 240sx bracket. As far as I know, the internal design and medium are the same. There is NO performance advantage to putting a 300z filter on a stock 240sx motor.
As far as sluggishness... could be a million different small things. You might want to do a compression test to determine overall health of your engine. I believe 240sx.org/faq has the instructions. Otherwise, start with the basics... check ignition timing with a light, new air filter, spark plugs (NGK), wires, rotor, and so on. You might need a new O2 sensor if mileage is bad. Don't waste money on snake-oils. Do everything yourself or you get ripped off.